[Global] If you’ve ever noticed a slimy film of algae on a rock, chances are you didn’t pay it much attention. But some of these overlooked species hold clues to one of the greatest mysteries of evolution, scientists have found: how plants arrived on land.

 

Photo: The early era of plant evolution is not well documented by fossils, so researchers have turned to living organisms for hints as to how plants arrived on land. Credit: Manuel Seoane/Reuters

View full article at: How did plants conquer land? These humble algae hold clues

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